CVE-2018-16864

An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when a program with long command line arguments calls syslog. A local attacker may use this flaw to crash systemd-journald or escalate his privileges. Versions through v240 are vulnerable.

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.0

7.4 HIGHCVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

4.6 MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS

0.71% chance of exploitation in the next 30 days, 51th percentile

Published

2019-01-11

Updated

2025-06-09

Proof-of-concept exploits (1)

• https://www.qualys.com/2019/01/09/system-down/system-down.txt

References

• CVE Record
• NVD entry

Related

• CVE-2018-16858
• CVE-2018-16865
• CVE-2018-16836
• CVE-2018-16866
• CVE-2018-16832
• CVE-2018-16875